Elbow



F. -.C. FANTZ Sept. l2, 1933.

ELBOW.

'Filed June 1i, 1932 2 Sheets-Sheet l yall INVENTOR 7 .l/md

TTORNEY g Sept 12, 1933- F. c. FANTZ ELBOW Filed June 11,71952 2 Sheets-Sl'xeerl 2 INVENTOR 07A&/ d. BY 7 57W? M had ATTORNEY Patented Sept. 12, 1933 n.

L fi 1 '1,926,670

1,926,670 LLow l I u F1-ed C. Fantz, Webster Groves, Mo. u Appliauon'rune 11, i932. serial N.'616,606

` z claims. (crass- 103) i 1n Patent No. 1,752,331 have shown areturn bend for oil stills and the like in which the joints are subjected not only to high pressure but also to high temperatures; alsdanV elbow in Figsr to '7 inclusive. In devices of this typeit is highly i desirable to have a joint between the iittingand Y the tube which will not interfere with thekilow tube cleaner in the tubes. v

` interior construction;

of the fluid and also which will not coke so as to render `its removal diiicult or slowror it is well known to persons familiar with the `art that lthe vrenery regards the expense caused by ,a shut,

down as much more seriousthan the cost of the` new equipment expensive though it may be@ My invention has for itsobject to provide van elbow` whichwill possessthe advantage of lbeing quickly and easily removedso as to permit ink spection of the tubesasrwell as theinsertion oly A further object being to provide an uninteri5 4rupted interior surface in the elbow and tube' so as not tointeriere with the flow of theuid therethrough.

My means of accomplishing the foregoing objects may be more readily understood by having reference to the accompanying drawings, inA

whichi Y Fig. 1 is a side'elevation of anelbow embodying my improvements having the joint on one facev only, a portion ,being broken away to'show the Fig. 2 is a plan View of the same;

' Fig. 3 is an end view of the same; i

Fig. 4 is a sideelevation ypartly in section of an elbow embodying my invention having my improved joint at both faces; f

Fig. 5 is a top orplan View thereof; and

Fig.' 6 is an end view of the tube being omitted.'

imilar reference numerals refer to similar parts throughout the entire description. I Y i As shown in Figs. 1 to 3 inclusive the elbow generallyj formed of some noncorrosive alloy is provided with an annular groove 1 in one of its faces 2; This groove .is adapted to receive `the end 3 oi a tube zl which is convex in cross section. Preferably this is a ground joint which Ihave found in practice to be highly satisfactory. The

tube e is' preferably formed .with an external I shoulder 5 which engaged by a sectional bushing or .ring 6 preferably formed of steel.V This bushingor ring lfits into an annularpo'rtion 7 of a housing which comprises upwardly extending side walls 8 and 9 preferably'segrnental inucross seo# tion. vArcuate slots'lO and 11 are cut orformed f in these side walls adjacent their upper ends; j

In these slots I mount a plate 12V which .has av formipreviously described and'apsecond `pair ofY `slots 20 and 21 are provided in the housing walls for this purpose.

set screw `13`in acentrally located, threaddrQap- -Y ertuie.v `Thel end of the screw 13 contacts an abutment 11'formed on the exteiorwall 'of the g vided with arflange v 1'5 for conveniently securing it to a flanged pipe vn(not shown). l

Toassemble the device the. annular portion 7 is rst passed'over the end` of the tube 4 then" The other face 15v o f the elbow is prol the sectional bushing or ringG Iis placed between J the external surfaceof the tube wall andthe internal shoulderedsurface of the' annular meme ber 7. The elbow' is then placed in the hous-` ing 'so that the groove 1 in its face 2 will register withthe end 3 of the tube 4. The plate 12 is thenfittedv into the arcuateslots 10 and Y1l and by tightening the set screw theend 3 of the tube e i will be drawn into the groovel and a tight jointj i t ,will be made which practice has shown is sufliciently rugged in character to withstand, withoutfleakage", the tremendous pressures avnd'tern-Y `peratures towhich these vjoints are subjected to whensin commercial use. It will also be seen that-this construction gives 4adirect pull`uponVA theshoulder on" the tubei. l

' As shown inFig; lleach of thetwo faces 2 of the elbow are provided with a groove adapted a to receivethe endsof tubes where `a ground joint is desired for both openings; housing is constructed differently than in the above this face lof the elbowl in which I rnount la plate 22 having a setV screw 23 therein the Yend of which contacts an abutment Zefformcd upon the external wall of the elbow. Inhave `found in practice when thus constructed, itis desirable in somel cases toV have some play be'- tween the bushing or ring and the annular por-I tionaccordingly I provide an annular space 25 Having describedmy invention what I regard as new and desire to secure by Letters Patentisz- 1.` The combinationfwithan elbow, having an- In this form the .Y

nular` grooves ineach face, adapted to connectV l a plurality or tubes, the ends of which nt said grooves, each tube having a shoulderof `a hous, ingl therefor, having annular portions,` sectional bushingsmountedintermediate the tubes and said. annular portionadapted to engage the shoulders on the tubes, .detachable means mount# ed in said housing, and means mountedin said means which Contact saidlelbow, said bushing .i

being spaced from said annular members. y u 2. In a device of the character described, the combination, with a housing having annular of a pair of tubes, of sectional metal bushings,

loosely mounted intermediate said annular mem-A bers and said tubes, side Walls on said annular members, 'an elbow mounted inside of said side wa11s,` means detachably mounted ini engagement members adapted to encircle and engage the ends f with said side Wal-1s, and set screws mounted l in said means, which engage said elbow whereby said elbowv` tightly together.

FRED c. FANTZ. 

